Chapter 6 Review

12345678910111213141516171819202122
Across
  1. 6. This is the unit in which distances in outerspace are measured.
  2. 8. ____ and gas are what makes up nebulae.
  3. 11. The machine that allows you to visualize a sound wave as a transverse wave.
  4. 12. The term for an area in space where stars are formed.
  5. 14. The name of the Mars sized planet that hit the earth and formed our moon.
  6. 15. The sound characteristic determined by a wave's frequency.
  7. 18. The sound characteristic determined by a wave's amplitude.
  8. 20. The term for the most recent giant supercontinent.
  9. 21. The part of the earth's layers you're currently sitting on.
Down
  1. 1. The term for when two sound waves interact and form a wave with a larger amplitude.
  2. 2. The plural form of nebula.
  3. 3. The part of the Earth's layers in which convection currents occur.
  4. 4. These geological landforms typically occur along the borders between tectonic plates.
  5. 5. The last name of the scientist who came up with the theory of plate tectonics.
  6. 7. The term for the interaction between two sound waves that results in a quieter sound.
  7. 9. The term for the uppermost part of a transverse wave.
  8. 10. The unit in which frequency is measured.
  9. 13. The name for the type of waves sound forms.
  10. 16. The hottest of the Earth's layers.
  11. 17. Between the moon and the earth, this one is less dense.
  12. 19. Wavelength and amplitude are both measured in some form of this unit.
  13. 22. The term for the lowermost part of a transverse wave.